BACKGROUND
[0002] The present application relates generally to the field of automotive vehicle seat
systems and more specifically to the field of mechanisms for use in automotive vehicle
seat systems having the purpose of providing increased utility to the user. In particular,
the present application relates to a seat system according to the preamble of claim
1 (
US 5,788,330 A).
[0003] Traditionally, seat assemblies in vehicles have been known to provide adjustability
for users for the purpose of utility or convenience, including, for example, the ability
to move a seat positioned for occupant seating to a position such that a passenger
may more easily gain entry to a seat positioned behind the adjustable seat. It has
been known to provide adjustability of a "front row" seat to a forward position to
gain ingress to a "second row" seat on vehicles such as a coupe (i.e. a two door vehicle)
as well as providing adjustability of "second row" seats to a forward position to
gain ingress to a "third row" seat on vehicles such as vans, trucks, sport utility
vehicles, and others similarly configured with more than two rows of seats.
[0004] Many different ways have been utilized to adjust the seat to a forward ingress position.
For example, the seatback may be rotated with respect to the seat cushion while, at
the same time, releasing a pair of tracks (typically used for comfort adjustment of
the seat in the forward and rearward directions) to allow the seat to shuttle forward
(i.e. towards the instrument panel of a coupe vehicle), thereby maximizing the ingress/egress
space for the user. Also, to achieve a forward ingress position, the seatback may
rotate from a reclined comfort position for occupant seating into a folded position,
in which the seatback is folded down toward the seat base.
[0005] U.S. Patent No. 5,788,330 A discloses a seat hinge assembly for a vehicle seat having a memory feature for returning
the seatback to its previous reclined position after a forward dumping operation has
been performed. The memory mechanism is normally operable in a non-actuated mode for
permitting independent adjustment of the reclined position of the seatback. When it
is desired to move the seatback from its reclined position to its forward dumped position,
a dump actuator mechanism is selectively actuated for shifting the memory mechanism
into its actuated mode so as to identify the current reclined position of the seat-back.
The dump actuator mechanism operably interconnects the memory mechanism to a latching
mechanism such that the latching mechanism is automatically shifted from its latched
mode into its unlatched mode in response to the memory mechanism being shifted from
its non-actuated mode into its actuated mode.
[0006] One problem associated with many adjustable seat assemblies is that when the seat
is folded, the original desired position of the seatback (i.e., a user's comfort position)
may be lost, requiring it to be re-set upon unfolding the seatback portion. Accordingly,
it would be advantageous to provide a seat assembly having a "memory" feature such
that the seatback may return to the desired comfort position (i.e. the specific position
prior to folding the seatback) after the seatback is unfolded from its easier ingress
position.
It would also be advantageous to provide this memory feature such that the comfort
adjust handle would still be allowed to rotate, while the seat was in its forward
ingress position. This would convey to the user that the handle and, thus, the connected
mechanism is still operable, without allowing for loss of user's specific comfort
position.
[0007] Accordingly, it would be advantageous to provide a seat assembly having a mechanism
system that provides one or more of these advantageous features or addresses one or
more of the above-identified concerns. Other features and advantages will be made
apparent from the present disclosure.
SUMMARY
[0008] A vehicle seat system including a seat bottom and a seat back is provided. The seat
system includes all features of claim 1.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] These and other features, aspects, and advantages of the present invention will become
apparent from the following description, appended claims, and the accompanying exemplary
embodiments shown in the drawings, which are briefly described below.
[0010] Fig. 1 is a perspective view of an automotive vehicle.
[0011] Fig. 2 is a perspective view of an exemplary seat system used in an automotive vehicle.
[0012] Fig. 3 is a perspective view, partially exploded for clarity, of an embodiment of
a seat mechanism in an occupant seated position.
[0013] Fig. 4 is a side view of a seat mechanism (latch side plate removed) showing internals
of an exemplary latch mechanism.
[0014] Fig. 5 is a side view of a seat mechanism in an occupant seated position, with latch
mechanism unlocked, thus preventing recliner from unlocking, but showing recliner
handle still rotatable.
[0015] Fig. 6 is a side view of a seat mechanism in an occupant seated position, with latch
mechanism locked and recliner mechanism unlocked (for comfort adjust of seatback).
[0016] Fig. 7 is a side view of a seat mechanism in an occupant seated position with both
recliner mechanism and latch mechanism locked.
[0017] Fig. 8 is a perspective view of an exemplary embodiment (a seat structure) utilizing
seat mechanism.
DETAILED DESCRIPTION
[0018] An exemplary embodiment of a vehicle seat that provides the convenient utility of
a rotatable seatback, to provide adjustable comfort to the occupant. The seat allows
for repositioning of the seatback to aid ingress into a seat positioned rearward of
the adjustable seatback. The seat includes a recliner mechanism and a comfort adjust
handle for adjusting the position of the seatback. The seat includes a memory feature
to lock the recliner mechanism in its current comfort position, yet still permits
the comfort adjust handle to rotate. These functions are achieved by a seat mechanism
which couples the recliner mechanism to a latch mechanism through a lockout mechanism.
[0019] Numerous types and designs of recliner mechanisms are known. For example, a recliner
mechanism is shown and described in
U.S. Provisional Patent Application No. 60/878,765 filed Jan 5, 2007.
The recliner mechanism allows the seatback to rotate with respect to the seat cushion
to provide adjustability so the user can locate a desired comfort position. According
to an exemplary embodiment, the recliner mechanism is a rotary, discontinuous locking
type, that includes a tooth plate, which is coupled to the seatback and through an
internal meshing of gears, is pivotally coupled to a base plate, which is also coupled
to the seat cushion. According to an exemplary embodiment the recliner mechanism may
be unlocked directly, through rotation of a release handle. The release handle is
rigidly connected to an actuator, which is pivotally connected to a drive. Rotation
of the release handle rotates the actuator, which contains a finger that may rotate
into contract with a lockout pin, and subsequently rotates the lockout pin with continued
release handle rotation. Through continued rotation of the release handle the lockout
pin may contact the finger of the drive and then rotate the drive. The recliner mechanism
disengages allowing for rotation of the seatback after a preset rotation of the drive,
which is rigidly connected to the cam, internal to the recliner mechanism.
[0020] An alternative embodiment may use a remote release lever, which is connected to a
cable which is then connected to the actuator. The recliner mechanism may be single
sided (i.e. one recliner mechanism per seat) or dual sided (i.e. two recliner mechanisms
per seat), in which a synchronization tube or additional cable is utilized for actuating
the "slave" recliner when the "lead" recliner is actuated. Those skilled in the art
will recognize that although the seat mechanism is discussed and illustrated using
a rotary, discontinuous locking type, that other recliners (e.g. continuous locking,
pawl and sector, etc.) may be utilized for use within the seat mechanism to provide
equivalent functionality.
[0021] The latch mechanism allows for rotation of the seatback with respect to the seat
cushion for the purpose of repositioning the seat to aid ingress into a rearward positioned
seat, and may comprise of a conventional cam, pawl, and sector type or another latch
type mechanism. Repositioning of the seat may be induced by pulling a release lever
that may be directly attached or remotely attached to the cam, thereby driving the
cam out of engagement with the pawl. The cam may then drive the teeth of the pawl
out of mesh with the teeth of the sector, thereby allowing for rotation of the seatback.
According to an exemplary embodiment, the teeth that serve as the sector of the latch
mechanism are incorporated or integrated onto the tooth plate of the recliner mechanism.
To allow the seatback to rotate, a bushing pivotally connects the recliner mechanism
tooth plate and the latch mechanism side plate, which is rigidly connected to the
back frame contained within the seatback.
[0022] The seat includes a lockout mechanism that serves to provide the seat with a memory
function that prevents release, or unlocking, of the recliner mechanism when the latch
mechanism is unlocked. The lockout mechanism includes a lockout cable that may have
one end pivotally connected to a release stud, which is rigidly fixed to the latch
mechanism's cam. Rotation of the cam pulls the cable along the arc of a release stud.
The lockout cable's other end may be connected to a lockout lever, which rotates when
the cable is stroked or pulled. Rotation of the lockout lever rotates a lockout pin
to a position in which the actuator, which is rigidly connected to the comfort adjust
release handle, may not contact the lockout pin when rotated. The actuator is not
able to contact the lockout pin when rotated. As a result, the actuator may not induce
rotation through the lockout pin onto the drive, which would release the recliner
mechanism. However, the actuator and the drive are pivotally connected and, as a result,
the actuator and release handle, which are rigidly connected, may rotate freely about
the drive. A spring may be used to provide torque, to return the actuator and release
handle to the home position and to reduce or eliminate any noise issues.
[0023] Referring to Fig. 1, an exemplary embodiment of an automotive vehicle 10, including
a rear seat system 11 and a (front) seat system 13, is illustrated. Seat system 13
provides the convenient utility of a rotatable seatback, to allow the occupant adjustability
for comfort, and to allow the seat to be repositioned to aid ingress into a rearward
positioned seat, which includes a memory feature to lock the recliner in its current
comfort position, yet allowing the comfort adjust handle to rotate.
[0024] Referring to Fig. 2, an exemplary embodiment of seat system 13, including a seatback
15, a seat cushion 17, a recliner (comfort adjust) release handle 21, a latch mechanism
release handle 23 and a seat mechanism 30 (contained within seat system 13), is illustrated.
Recliner release handle 21, when actuated, communicates to seat mechanism 30 to allow
for seatback 15 to rotate with respect to seat cushion 17 so that the user may find
a desired comfort position. Latch mechanism release handle 23, when actuated, communicates
to seat mechanism 30 to allow for seatback 15 to rotate with respect to seat cushion
17, which may then in turn release tracks (allowing seat system 13 to slide forward)
so that user may gain more room for ingress to rear seat system 11. During this increased
ingress seat position, recliner release handle 21 may rotate, but does not release
or unlock recliner mechanism, thereby providing memory of the seatback's specific
comfort position when seatback 15 is rotated back to comfort position. Recliner release
handle 21 and latch mechanism release handle 23 may be located anywhere on seat system
13.
[0025] Fig. 3 is a partially exploded view of an exemplary embodiment of seat mechanism
30 that includes a lockout mechanism 40, a recliner mechanism 50, a cushion-frame
mounting bracket 51 and a latch mechanism 60. Lockout mechanism 40 includes an actuator
31, a spring 32, a drive 33, a lockout lever 35, a lockout pin 37, a retainer bracket
39, a pivot stud 41 and a lockout cable 45 (shown in Fig. 5). Latch mechanism 60 includes
a cable attachment stud 43, a back-frame mounting bracket 61, a pivot bushing 63,
and a side plate 65, a cam 67 (shown in Fig. 4), a pawl 69 (shown in Fig. 4), a stop
stud 71 (shown in Fig. 4) a pawl pivot 73, a cam pivot 75 and a cam return spring
77. Recliner mechanism 50 includes a base plate 55, rigidly connected to cushion-frame
mounting bracket 51, and a tooth plate 53, rigidly connected to one end of pivot bushing
63. Tooth plate 53 and base plate 55 are pivotally coupled through an internal gear
mesh. Cushion frame mounting bracket 51 may be rigidly connected to the cushion frame.
Pivot bushing 63 may have the other end rigidly connected to back-frame mounting bracket
61. Recliner release handle 21 may be rigidly connected to actuator 31, which is pivotally
connected to a drive 33. The release handle 21 and the actuator 31 share the same
axis of rotation.
[0026] Drive 33 may be keyed to a synchronization tube 54, which is connected to the cam
contained within recliner mechanism 50 for the purpose of releasing recliner mechanism
50 when rotated. In the exemplary embodiment disclosed in Figs. 3 and 4, synchronization
tube 54 is connected to both recliners used in a dual sided application for the purpose
of releasing both simultaneously. An alternative embodiment may have one recliner
with its cam connected to a release shaft, which may be keyed to drive 33. Lockout
lever 35 is pivotally connected, about its center, to pivot stud 41 and contains on
one end a cable attachment feature and on its other end a slot which contains while
allowing for translation of lockout pin 37 along the slot. Pivot stud 41 is rigidly
connected to retainer bracket 39, which is rigidly connected to cushion frame mounting
bracket 51.
[0027] Referring to Fig. 4, a side view of an exemplary latch mechanism 60, which allows
the seatback to rotate when unlocked, is illustrated. The latch mechanism 60 includes
a cam 67, which is pivotally connected to a cam pivot 75, and a pawl 69, which is
pivotally connected to pawl pivot 73. The cam 67 and pawl 69 are contained between
side plate 65 (removed from Fig. 4 for clarity) and a back-frame mounting bracket
61. Pawl 69 has teeth which mesh with external teeth of tooth plate 53. Latch mechanism
60 may include a stop stud 71 for the purpose of controlling rearward travel and for
removing clearance in conjunction with cam 67 being induced to rotate by cam return
spring 77. Actuation is achieved (in this exemplary embodiment) by pulling on latch
mechanism release handle 23, which strokes a cable, which is connected to cable attachment
stud 43, that in turn rotates cam 67 in a counter-clockwise direction, about cam pivot
75. The counter-clockwise rotation of cam 67 causes the corresponding rotation of
pawl 69 in a clockwise direction. The rotation of the pawl 69 disengages teeth of
pawl 69 from teeth of tooth plate 53. Seatback 15, which is connected to back-frame
mounting bracket 61 may then rotate with respect to seat cushion 17. In an alternative
embodiment not shown, the track system would be released by the rotation of seatback
15, allowing for seat system 13 to shuttle forward, to allow for user to maximize
ingress into rear seat system 11.
[0028] Fig. 5 discloses, an exemplary embodiment of seat mechanism 30 in an occupant seating
position. Latch mechanism 60 is unlocked, inducing lockout of recliner mechanism 50,
which provides memory when the seatback is unfolded. As a result of latch mechanism
60 being unlocked, lockout mechanism 40 prevents recliner mechanism 50 from being
able to be released or unlocked.
[0029] During operation of the seat, actuation of latch mechanism release handle 23, causes
corresponding movement of a cable that is connected to cable attachment stud 43 thereby
moving stud 43. Lockout cable 45 has one end connected to cable attachment stud 43
and the other end connected to lockout lever 35. Movement of cable attachment stud
43 induces lockout cable 45 to stroke, which rotates lockout lever 35 in a clockwise
direction, about pivot stud 41, which further induces lockout pin 37 to rotate, about
pivot stud 41. Lockout pin 37 may rotate free of the arc through which the finger
of actuator 31 rotates, so that rotation of actuator 31 may cause the finger to rotate
under and clear of lockout pin 37. Recliner release handle 21 may then be rotated
without release of recliner mechanism 50. Seatback 15 may then be rotated to its forward
position for increased ingress and then unfolded back to the specific comfort position
of seatback 15 prior to latch mechanism release handle 23 actuation.
[0030] An alternative embodiment may include a spring or similar device to return actuator
31 to its home or locked position by inducing a counter-clockwise rotation of both
actuator 31 and recliner release handle 21, which may also allow for easier return
of lockout pin 37 to its home position. Another alternative embodiment may include
a spring or other suitable device to return lockout lever 35 to its home position,
whereby the lockout pin 37 finds it home position.
[0031] Fig. 6 discloses an exemplary embodiment of seat mechanism 30 in an occupant seating
position, with latch mechanism 60 locked and recliner mechanism 50 unlocked to provide
comfort adjust of seatback 15 to the user. Rotation of recliner release handle 21
rotates actuator 31 in a clockwise direction inducing the finger of actuator 31 into
contact with lockout pin 37. Further rotation of actuator 31 drives lockout pin 37
into contact with the finger of drive 33. Continued rotation of actuator 31 and subsequent
rotation of drive 33 may release recliner mechanism 50 to allow the user to rotate
the seatback, with respect to the seat-cushion, to provide for a specific comfort
seating position.
[0032] Referring to Fig. 7, an exemplary embodiment illustrating seat mechanism 30 in an
occupant seating position, with both recliner mechanism 50 and latch mechanism 60
locked. The home positions of actuator 31, lockout lever 35 are shown.
[0033] Referring to Fig. 8, an exemplary embodiment of seat mechanism 30 connected to a
seat structure contained within seat system 13 is illustrated. Seat mechanism 30 is
shown utilizing a dual sided configuration with a left-hand side as shown in Fig.
7 and with a right-hand side symmetrically opposite. An alternative embodiment may
utilize a single sided configuration with one seat mechanism 30 on one side and a
"free pivot" on the other side. An exemplary embodiment has a pair of tracks connected
to the cushion frame to provide forward and rearward comfort adjust of seat and to
also provide additional ingress for seat system 13 when latch release handle is actuated.
[0034] It should be noted that references to "front," "rear," "top," and "base" in this
description are merely used to identify various elements as are oriented in the Figures,
with "front" and "rear" being relative to the environment in which the device is provided.
[0035] For the purpose of this disclosure, the term "coupled" means the joining of two members
directly or indirectly to one another. Such joining may be stationary or moveable
in nature. Such joining may be achieved with the two members or the two members and
any additional intermediate members being integrally formed as a single unitary body
with one another or with the two members or the two members and any additional intermediate
members being attached to one another. Such joining may be permanent in nature or
may be removable or releasable in nature.
[0036] It is important to note that the construction and arrangement of the vehicle seating
system as shown in the various exemplary embodiments is illustrative only.
1. A seat system (13) for an occupant of a vehicle, the seat system including a seat-bottom
(17) and a seat-back (15) and comprising:
a recliner mechanism (50) for providing rotation of the seat-back for comfort of the
occupant, wherein the recliner mechanism is configured to be locked in a selected
position corresponding to a specific comfort seat-back position selected by the occupant;
and
a latch mechanism (60) configured to unlock to allow forward rotation of the seat-back
to provide ingress to a second seat (11) positioned rearward in the vehicle from the
seat system;
characterized in that the seat system further comprises a lockout mechanism (40) configured to prevent
release of the recliner mechanism from the selected position when the latch mechanism
is unlocked so that the seat-back returns to the specific comfort seat-back position
when the latch mechanism is in the locked position, an actuator (31), a lockout pin
(37), and a drive (33),
wherein rotation of the actuator (31) drives the lockout pin (37) into contact with
the drive (33) such that the rotation of actuator and subsequent rotation of the drive
may release the recliner mechanism (50) to allow the occupant to rotate the seat-back
to provide for the specific comfort seat-back position,
wherein the lockout mechanism prevents release of the recliner mechanism when the
latch mechanism is unlocked such that the actuator may not induce rotation through
the lockout pin onto the drive, which would release the recliner mechanism.
2. The seat system of claim 1, wherein the latch mechanism (60) is unlocked by actuating
a release handle (23); and wherein movement of the release handle causes corresponding
movement of the lockout pin (37) of the lockout mechanism (40) to prevent the rotation
of the drive (33) so as prevent release of the recliner mechanism (50) from the selected
position.
3. The seat system of claim 2, wherein the lockout mechanism (40) includes a lockout
lever (35) pivotally attached to the lockout pin (37), and wherein the lockout lever
pivots to cause the lockout pin to move to a position that no longer engages the actuator
(31) for the recliner mechanism so to prevent rotation of the drive (33) for preventing
release of the recliner mechanism.
4. The seat system of claim 3, wherein the lockout pin (37) slides along a slot on the
lockout lever (35).
5. The seat system of claim 2, further comprising a stud (43) that is pivotally connected
to a lockout cable (45); wherein movement of the release handle (23) rotates the stud
and strokes the lockout cable; wherein the lockout mechanism (40) includes a lockout
lever (35); and wherein the iockout cable being stroked is attached to the lockout
lever and induces the lockout lever, which is pivotally connected to a pivot stud
(41), to rotate about the pivot stud.
6. The seat system of claim 1, wherein the latch mechanism (60) comprises a pawl (69)
and a cam (67) such that rotation of the cam causes disengagement of the pawl from
a tooth plate (53) so that the seat-back (15) rotates relative to the seat-bottom
(17) to provide ingress to the second seat (11) without rotating the drive (33).
7. The seat system of claim 1, wherein the latch mechanism (60) is unlocked by actuating
a release handle (23); and wherein the release handle is connected to the actuator
(31) that includes a first finger, which is pivotally connected to the drive (33)
that includes a second finger.
8. The seat system of claim 7, wherein the second finger is connectable to the lockout
pin (37) which is connectable to the first finger, whereby rotation of the drive (33)
provides release of the recliner mechanism (50) via a cam internal to the recliner
mechanism.
9. The seat system of claim 8, wherein movement of the release handle (23) causes corresponding
movement of the lockout pin (37) of the lockout mechanism (40) to prevent the rotation
of the drive (33) so as prevent release of the recliner mechanism (50) from the selected
position.
10. The seat system of claim 9, wherein the lockout mechanism (40) includes a lockout
lever (35) pivotally attached to the lockout pin (37), and wherein the lockout lever
(35) pivots to cause the lockout pin (37) to move to a position that no longer engages
the first finger of the actuator (31) so to prevent the rotation of the drive (33).
11. The seat system of claim 10, wherein the lockout pin (37) slides along a slot on the
lockout lever (35).
12. The seat system of claim 9, further comprising a stud (43) that is pivotally connected
to a lockout cable (45); wherein movement of the release handle (23) rotates the stud
and strokes the lockout cable; and wherein the lockout mechanism (40) includes a lockout
lever (35); and wherein the lockout cable being stroked is attached to the lockout
lever and induces the lockout lever, which is pivotally connected to a pivot stud
(41), to rotate about the pivot stud.
13. The seat system of claim 1, wherein the drive (33) is rigidly connected to a cam that
is internal to the recliner mechanism (50).
1. Sitzsystem (13) für einen Insassen eines Fahrzeugs, wobei das Sitzsystem ein Sitzunterteil
(17) und eine Sitzlehne (15) aufweist und aufweist:
einen Lehnenverstellmechanismus (50) zum Bewirken einer Schwenkung der Sitzlehne für
den Komfort des Insassen, wobei der Lehnenverstellmechanismus dafür ausgebildet ist,
in einer ausgewählten Position arretiert zu werden, die einer von dem Insassen gewählten
speziellen Komfort-Sitzlehnenposition entspricht; und
einen Verriegelungsmechanismus (60), der dafür ausgebildet ist zu entriegeln, um eine
Schwenkung der Sitzlehne nach vorn zu ermöglichen, um den Zugang zu einem zweiten
Sitz (11) zu gewährleisten, der in dem Fahrzeug hinter dem Sitzsystem positioniert
ist;
dadurch gekennzeichnet, dass das Sitzsystem ferner einen Sperrmechanismus (40), der dafür ausgebildet ist, ein
Lösen des Lehnenverstellmechanismus aus der ausgewählten Position zu verhindern, wenn
der Verriegelungsmechanismus entriegelt ist, so dass die Sitzlehne in die spezielle
Komfort-Sitzlehnenposition zurückkehrt, wenn sich der Verriegelungsmechanismus in
der verriegelten Position befindet, einen Aktor (31), einen Sperrstift (37) und einen
Antrieb (33) aufweist,
wobei eine Drehung des Aktors (31) den Sperrstift (37) in Kontakt mit dem Antrieb
(33) bringt, derart, dass die Drehung des Aktors und
anschließende Drehung des Antriebs den Lehnenverstellmechanismus (50) lösen kann,
um dem Insassen zu ermöglichen, die Sitzlehne zu schwenken, um für die spezielle Komfort-Sitzlehnenposition
zu sorgen,
wobei der Sperrmechanismus ein Lösen des Lehnenverstellmechanismus verhindert, wenn
der Verriegelungsmechanismus entriegelt ist, derart,
dass der Aktor nicht über den Sperrstift eine Drehung des Antriebs bewirken kann,
welche den Lehnenverstellmechanismus lösen würde.
2. Sitzsystem nach Anspruch 1, wobei der Verriegelungsmechanismus (60) durch Betätigen
eines Lösegriffs (23) entriegelt wird; und wobei eine Bewegung des Lösegriffs eine
entsprechende Bewegung des Sperrstifts (37) des Sperrmechanismus (40) verursacht,
um die Drehung des Antriebs (33) zu verhindern, um dadurch ein Lösen des Lehnenverstellmechanismus
(50) aus der ausgewählten Position zu verhindern.
3. Sitzsystem nach Anspruch 2, wobei der Sperrmechanismus (40) einen Sperrhebel (35)
aufweist, der schwenkbar an dem Sperrstift (37) befestigt ist, und wobei der Sperrhebel
schwenkt, um zu bewirken, dass sich der Sperrstift in eine Position bewegt, in welcher
der Aktor (31) für den Lehnenverstellmechanismus nicht mehr betätigt wird, um dadurch
eine Drehung des Antriebs (33) zu verhindern, um ein Lösen des Lehnenverstellmechanismus
zu verhindern.
4. Sitzsystem nach Anspruch 3, wobei der Sperrstift (37) entlang eines Schlitzes an dem
Sperrhebel (35) gleitet.
5. Sitzsystem nach Anspruch 2, welches ferner einen Bolzen (43) aufweist, welcher schwenkbar
mit einem Sperrkabel (45) verbunden ist; wobei eine Bewegung des Lösegriffs (23) den
Bolzen dreht und an dem Sperrkabel zieht; wobei der Sperrmechanismus (40) einen Sperrhebel
(35) aufweist; und wobei das Sperrkabel, an dem gezogen wird, an dem Sperrhebel befestigt
ist und bewirkt, dass sich der Sperrhebel, welcher schwenkbar mit einem Drehzapfen
(41) verbunden ist, um den Drehzapfen dreht.
6. Sitzsystem nach Anspruch 1, wobei der Verriegelungsmechanismus (60) eine Klinke (69)
und einen Nocken (67) aufweist, so dass eine Drehung des Nockens ein Ausrasten der
Klinke aus einer Zahnplatte (53) bewirkt, so dass die Sitzlehne (15) relativ zu dem
Sitzunterteil (17) schwenkt, um den Zugang zu einem zweiten Sitz (11) zu gewährleisten,
ohne den Antrieb (33) zu drehen.
7. Sitzsystem nach Anspruch 1, wobei der Verriegelungsmechanismus (60) durch Betätigen
eines Lösegriffs (23) entriegelt wird; und wobei der Lösegriff mit dem Aktor (31)
verbunden ist, welcher einen ersten Finger aufweist, welcher schwenkbar mit dem Antrieb
(33) verbunden ist, welcher einen zweiten Finger aufweist.
8. Sitzsystem nach Anspruch 7, wobei der zweite Finger mit dem Sperrstift (37) verbindbar
ist, welcher mit dem ersten Finger verbindbar ist, wodurch eine Drehung des Antriebs
(33) ein Lösen des Lehnenverstellmechanismus (50) über einen in dem Lehnenverstellmechanismus
vorgesehenen Nocken bewirkt.
9. Sitzsystem nach Anspruch 8, wobei eine Bewegung des Lösegriffs (23) eine entsprechende
Bewegung des Sperrstifts (37) des Sperrmechanismus (40) verursacht, um die Drehung
des Antriebs (33) zu verhindern, um dadurch ein Lösen des Lehnenverstellmechanismus
(50) aus der ausgewählten Position zu verhindern.
10. Sitzsystem nach Anspruch 9, wobei der Sperrmechanismus (40) einen Sperrhebel (35)
aufweist, der schwenkbar an dem Sperrstift (37) befestigt ist, und wobei der Sperrhebel
(35) schwenkt, um zu bewirken, dass sich der Sperrstift (37) in eine Position bewegt,
in welcher der erste Finger des Aktors (31) nicht mehr betätigt wird, um dadurch die
Drehung des Antriebs (33) zu verhindern.
11. Sitzsystem nach Anspruch 10, wobei der Sperrstift (37) entlang eines Schlitzes an
dem Sperrhebel (35) gleitet.
12. Sitzsystem nach Anspruch 9, welches ferner einen Bolzen (43) aufweist, welcher schwenkbar
mit einem Sperrkabel (45) verbunden ist; wobei eine Bewegung des Lösegriffs (23) den
Bolzen dreht und an dem Sperrkabel zieht; und wobei der Sperrmechanismus (40) einen
Sperrhebel (35) aufweist; und wobei das Sperrkabel, an dem gezogen wird, an dem Sperrhebel
befestigt ist und bewirkt, dass sich der Sperrhebel, welcher schwenkbar mit einem
Drehzapfen (41) verbunden ist, um den Drehzapfen dreht.
13. Sitzsystem nach Anspruch 1, wobei der Antrieb (33) starr mit einem Nocken verbunden
ist, welcher in dem Lehnenverstellmechanismus (50) vorgesehen ist.
1. Système de siège (13) pour un occupant d'un véhicule, le système de siège comportant
une assise de siège (17) et un dossier de siège (15) et comprenant :
un mécanisme d'inclinaison (50) assurant la rotation du dossier de siège pour le confort
de l'occupant, le mécanisme d'inclinaison étant configuré pour être verrouillé dans
une position sélectionnée correspondant à une position du dossier de siège confortable
spécifique sélectionnée par l'occupant ; et
un mécanisme d'encliquetage (60) configuré pour se déverrouiller pour permettre la
rotation vers l'avant du dossier de siège afin de permettre l'accès à un deuxième
siège (11) positionné à l'arrière du véhicule à partir du système de siège
caractérisé en ce que le système de siège comprend en outre un mécanisme de verrouillage (40) configuré
pour empêcher la libération du mécanisme d'inclinaison depuis la position sélectionnée
lorsque le mécanisme d'encliquetage est déverrouillé de telle sorte que le dossier
de siège revienne dans la position du dossier de siège confortable spécifique lorsque
le mécanisme d'encliquetage est dans la position verrouillée,
un actionneur (31), une broche de verrouillage (37), et un entraînement (33),
la rotation de l'actionneur (31) entraînant la broche de verrouillage (37) en contact
avec l'entraînement (33) de telle sorte que la rotation de l'actionneur et la rotation
subséquente de l'entraînement puissent libérer le mécanisme d'inclinaison (50) pour
permettre à l'occupant de faire pivoter le dossier de siège afin d'obtenir la position
de dossier de siège confortable spécifique,
le mécanisme de verrouillage empêchant la libération du mécanisme d'inclinaison lorsque
le mécanisme d'encliquetage est déverrouillé de telle sorte que l'actionneur ne puisse
pas provoquer la rotation par le biais de la broche de verrouillage sur l'entraînement,
ce qui libérerait le mécanisme d'inclinaison.
2. Système de siège selon la revendication 1, dans lequel le mécanisme d'encliquetage
(60) est déverrouillé par l'actionnement d'une poignée de libération (23) ; et dans
lequel le mouvement de la poignée de libération provoque le mouvement correspondant
de la broche de verrouillage (37) du mécanisme de verrouillage (40) pour empêcher
la rotation de l'entraînement (33) de manière à empêcher la libération du mécanisme
d'inclinaison (50) depuis la position sectionnée.
3. Système de siège selon la revendication 2, dans lequel le mécanisme de verrouillage
(40) comporte un levier de verrouillage (35) attaché de manière pivotante à la broche
de verrouillage (37), et dans lequel le levier de verrouillage pivote de manière à
amener la broche de verrouillage à se déplacer dans une position qui ne s'engage plus
avec l'actionneur (31) du mécanisme d'inclinaison, de manière à empêcher la rotation
de l'entraînement (33) pour empêcher la libération du mécanisme d'inclinaison.
4. Système de siège selon la revendication 3, dans lequel la broche de verrouillage (37)
glisse le long d'une fente sur le levier de verrouillage (35).
5. Système de siège selon la revendication 2, comprenant en outre un goujon (43) qui
est connecté de manière pivotante à un câble de verrouillage (45) ; dans lequel le
mouvement de la poignée de libération (23) fait tourner le goujon et actionne le câble
de verrouillage ; dans lequel le mécanisme de verrouillage (40) comporte un levier
de verrouillage (35) ; et dans lequel le câble de verrouillage actionné est attaché
au levier de verrouillage et amène le levier de verrouillage, qui est connecté de
manière pivotante à un goujon de pivotement (41), à tourner autour du goujon de pivotement.
6. Système de siège selon la revendication 1, dans lequel le mécanisme d'encliquetage
(60) comprend un cliquet (69) et une came (67) de telle sorte que la rotation de la
came provoque le désengagement du cliquet d'une plaque dentée (53) de telle sorte
que le dossier de siège (15) pivote par rapport à l'assise de siège (17) pour permettre
l'accès au deuxième siège (11) sans faire tourner l'entraînement (33).
7. Système de siège selon la revendication 1, dans lequel le mécanisme d'encliquetage
(60) est déverrouillé en actionnant une poignée de libération (23) ; et dans lequel
la poignée de libération est connectée à l'actionneur (31) qui comporte un premier
doigt, qui est connecté de manière pivotante à l'entraînement (33) qui comporte un
deuxième doigt.
8. Système de siège selon la revendication 7, dans lequel le deuxième doigt peut être
connecté à la broche de verrouillage (37) qui peut être connectée au premier doigt,
la rotation de l'entraînement (33) assurant la libération du mécanisme d'inclinaison
(50) par le biais d'une came interne au mécanisme d'inclinaison.
9. Système de siège selon la revendication 8, dans lequel le mouvement de la poignée
de libération (23) provoque le mouvement correspondant de la broche de verrouillage
(37) du mécanisme de verrouillage (40) pour empêcher la rotation de l'entraînement
(33) de manière à empêcher la libération du mécanisme d'inclinaison (50) depuis la
position sélectionnée.
10. Système de siège selon la revendication 9, dans lequel le mécanisme de verrouillage
(40) comporte un levier de verrouillage (35) attaché de manière pivotante à la broche
de verrouillage (37), et dans lequel le levier de verrouillage (35) pivote de manière
à amener la broche de verrouillage (37) à se déplacer jusqu'à une position qui ne
s'engage plus avec le premier doigt de l'actionneur (31) de manière à empêcher la
rotation de l'entraînement (33).
11. Système de siège selon la revendication 10, dans lequel la broche de verrouillage
(37) glisse le long d'une fente sur le levier de verrouillage (35).
12. Système de siège selon la revendication 9, comprenant en outre un goujon (43) qui
est connecté de manière pivotante à un câble de verrouillage (45) ; dans lequel le
mouvement de la poignée de libération (23) fait tourner le goujon et actionne le câble
de verrouillage ; et dans lequel le mécanisme de verrouillage (40) comporte un levier
de verrouillage (35) ; et dans lequel le câble de verrouillage actionné est attaché
au levier de verrouillage et amène le levier de verrouillage, qui est connecté de
manière pivotante à un goujon de pivotement (41), à tourner autour du goujon de pivotement.
13. Système de siège selon la revendication 1, dans lequel l'entraînement (33) est connecté
rigidement à une came qui est interne au mécanisme d'inclinaison (50).